28670439
Descripción
Test por Davina Mukundi, actualizado hace más de 1 año
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Creado por Davina Mukundi
hace casi 4 años
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Pregunta 1
Pregunta
How do you find the real roots of the following equation?
Image:
Image (binary/octet-stream)
Respuesta
-
by cross multiplying
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by multiplying the two terms by both denominators
Pregunta 2
Pregunta
For transformations, what happens when a > 1?
Respuesta
-
vertical stretch by a
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vertical compression by a
Pregunta 3
Pregunta
For transformations, what happens when k > 1
Respuesta
-
horizontal compression by 1/k
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horizontal stretch by 1/k
Pregunta 4
Pregunta
For transformations, when (a) is negative there is a reflection of the x axis and when (k) is negative there is a reflection of the y axis.
Respuesta
- True
- False
Pregunta 5
Pregunta
If d is positive in the general transformed form that means ______________
Respuesta
-
d is negative and moves the graph to the left
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d is positive and moves the graph to the right
Pregunta 6
Respuesta
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by multiplying both sides by x (b-x)
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by cross multiplying
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by factoring out the gcf
Pregunta 7
Respuesta
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log (b) x = y
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log (b) y = x
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log (x) b = y
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log (y) x = b
Pregunta 8
Respuesta
-
a
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log
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x
Pregunta 9
Pregunta
How do you calculate log (a) x?
Respuesta
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(log x)/(log a)
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(log a)/(log x)
Pregunta 10
Respuesta
-
ln (98)/ ln (12) = x
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ln (12)/ ln (98) = x
Pregunta 11
Pregunta
125^(2x) corresponds with
Respuesta
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2 ln 125
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125 ln 2
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21 ln 25
Pregunta 12
Respuesta
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(5 ln (8))/(3 ln (8) - (6 ln (3)) = x
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(3 ln (8))/(6 ln (3)) - (5 ln (8)) = x
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(6 ln (3))/(5 ln (8) - (3 ln (8)) = x
Pregunta 13
Respuesta
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(5 ln (8)) + (7 ln (3))/(3 ln (8)) - (6 ln (3))
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(5 ln (8)) + (3 ln (8))/(7 ln (3))- (6 ln (3))
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(5 ln (8)) - (7 ln (3))/(3 ln (8)) + (6 ln (3))
Pregunta 14
Pregunta
(3^5 - 1) ⚫ 3^x = 177 876 corresponds with the equation in the image
Image:
Image (binary/octet-stream)
Respuesta
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yes.
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no, it's (3^5 + 1) ⚫ 3^x = 177 876
Pregunta 15
Pregunta
if we factor 8^(x+7) - 8^x, you get (8^7 -1) ⚫ 8^x
Respuesta
- True
- False
Pregunta 16
Pregunta
select every true statement
Respuesta
-
f(x) =/= f(-x) =/= -f(x) → f(x) is neither
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f(x) = f(-x) → f(x) is even
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f(-x) = -f(x) →f(x) is odd
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f(-x) = -f(x) →f(x) is neither
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f(x) =/= f(-x) =/= -f(x) → f(x) is even
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f(x) = f(-x) → f(x) is odd
Pregunta 17
Respuesta
-
instantaneous rate of change
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the average rate of change
Pregunta 18
Pregunta
How do you find the instantaneous rate of change?
Respuesta
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by using ( f(x + 0.0001) + f (x) ) / 0.0001
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by using ( f (x2) - f (x1) ) / (x2) - (x1)
Pregunta 19
Pregunta
Given that f(x)=x+1 and g(x)= 7x^2+11x−9 what would the equation for g (o) f be?
Respuesta
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7(x + 1) ^2+11(x + 1) − 9
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(7x^2+11x−9 ) + 1
Pregunta 20
Pregunta
How do you calculate a DEPRECIATION rate?
Respuesta
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new worth = original worth (1-r)^(number of years)
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new worth = original worth (1+r)^(number of years)
Pregunta 21
Pregunta
the formula used to find an APPRECIATION rate is new worth = original worth (1-r)^number of years
Respuesta
- True
- False
Pregunta 22
Pregunta
If the instantaneous rate of change is positive on the LEFT side of the turning point and negative on the RIGHT side of the turning point, it means that the turning point is a MINIMUM
Respuesta
- True
- False
Pregunta 23
Pregunta
If the instantaneous rate of change is negative on the left side of the turning point and positive on the right side of the turning point, it means that the turning point is a _________
Respuesta
-
minimum
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maximum
Pregunta 24
Pregunta
What's the formula for finding an angle in radians?
Respuesta
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(arc length) / (radius)
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(radius) / (arc length)
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(arc length) / (radians)
Pregunta 25
Pregunta
Functions can only be combined if _____________
Respuesta
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they have a common domain
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they have a common range
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they have a common degree
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they have common graph
Pregunta 26
Pregunta
When combining functions, keep the _ values the same while applying the operations to the _ values
Respuesta
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x, y
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y, x
Pregunta 27
Pregunta
x^2+ rx + sx + c where r ◉ s = c and r + s = b
which polynomial am I factoring?
Respuesta
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complex trinomial
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simple trinomial
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complex binomial
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complex polynomial
Pregunta 28
Pregunta
(ax^2+bx+c where r ◉ s = ac and r + s = b) is used to factor a COMPLEX trinomial
Respuesta
- True
- False
Pregunta 29
Pregunta
How convert an angle in DEGREES to RADIANS? (180 D, 180 DOWN)
Respuesta
-
angle in degrees x (180/π) = angle in radians
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angle in degrees x (π/180) = angle in radians
Pregunta 30
Pregunta
How to convert an angle in RADIANS to DEGREES? (180 R, 180 RISE)
Respuesta
-
angle in radians x (180/π) = angle in degrees
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angle in radians x (π/180) = angle in degrees
Pregunta 31
Pregunta
select every true statement concerning sinusoidal functions. read your answers carefully.
Respuesta
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d is the starting point.
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a is the starting point.
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to find a, we use the formula: (maximum + minimum)/ (2)
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to find c, we use the formula: (maximum - minimum)/ (2)
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to find a, we use the formula: (maximum x minimum)/ (2)
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the amplitude is the length of one cycle.
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the period is the length of one cycle.
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(2pi)/ (period) is the formula used to find k.
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(period)/ (2pi) is the formula used to find k.
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(2pi) x (period) is the formula used to find k.
Pregunta 32
Pregunta
when the multiplicity of a factor is even, the graph ______
Respuesta
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crosses the x axis
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bounces off the axis
Pregunta 33
Pregunta
when the multiplicity of a factor is odd, the graph ______
Respuesta
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crosses the x axis
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bounces off the x axis
Pregunta 34
Pregunta
when it comes to the equation ( ax + b ) / ( cx + d), select every statement that is true.
Respuesta
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we can find its vertical asymptote by finding the x intercept of the denominator
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we can find its horizontal asymptote by dividing a/c
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we can find its x intercept by solving the numerator
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we can find its y intercept by setting x's of the equation to 0
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we can find its horizontal asymptote by dividing c/a
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we can find its vertical asymptote by finding the y intercept of the numerator
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we can find its x intercept by setting y's of the equation to 0
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we can find its x intercept by solving the denominator
Pregunta 35
Pregunta
in trigonometry, which functions are EVEN?
Respuesta
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cot
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tan
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sin
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csc
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sec
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cos
Pregunta 36
Pregunta
how do you determine the domain and range of this function?
Image:
Image (binary/octet-stream)
Respuesta
-
when a is negative: { YER l y < c }
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when a is positive: { YER l y > c }
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when k is positive: { XER l x > d}
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when k is negative: { XER l x < d }
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when k is negative: { XER l x > d }
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when a is positive: { YER l y < c }
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